Guys it's becoming more and more popular to spread fud on this forum, I'm actually slowly finding it difficult to look up a thread of any value at all. The best strategy to combat the people who are intentionally spreading ridiculous comments on how bitcoin will die is not to raise those threads by commenting on them. Let them post it and slip into oblivion by not giving them the visibility they're thriving for. Rather create and comment on threads with reasonable remarks on crypto economy.
It is impossible for many to do what you are asking and the reason is simple, when things go wrong the search for information goes up dramatically, this is a known fact about humans, people are seeing that almost all the coins are down and they are losing money so they are looking for information to explain what it is happening.
We know what it is happening, the market of cryptocurrencies has a high level of volatility and after the bubble we suffered a crash, that was inevitable and an eventual recovery is inevitable as well, but people will not believe such a logical explanation, to them it makes more sense that the market is dying or something ridiculous like that, so just accept it, it is natural that such threads appear right now the same way that it is very natural to see threads of incredible optimism when the market is doing well.